100a fuse enough

[kizzo 10+ year member]

i have 4awg running to a distro block feeding 4awg to a viper d1200.1 pushing 1200rms and 8awg to a profile ca600 pushing 300w rms.

im running 1500w rms total, i have a fuse about 2 feet from my battery and its 100a, is this going to do the job? if not what fuse will and what kind should i use?

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[lionel2 10+ year member]

you might need some bigger wires with that kinda rms you running..i run about 600w rms with my 4 guage and my amps are thirty for power

 

[bamaboy 5,000+ posts]

the fuse up front should be the size the wire can carry, i it makes you feel better i went with a 90a fuse with a 1200.1 and it never blew, your amps are not going to pull those amounts of current anyway

 

[lionel2 10+ year member]

very true...i have a 100A fuse for my 2 amps..never blew...i always fuse according to fuse rating...i have a 60A and 40A fuse ratings...but hey my amps are small...and running at only 4 ohms to keep them cool...vipers are nice amps..tend to run hot...run them cool

 

[bamaboy 5,000+ posts]

my viper never ran hot on me

 

[lionel2 10+ year member]

kizzo..what you think?? should you go with bigger wires??

 

[kizzo 10+ year member]

i think ill be alright then, a 4awg wire can around 1400w class d and 400w class ab, so im just where i want to be.